A sample of 75 information systems managers had an average hourly income of RM40.75 with a standard deviation of RM7.00. The value of the margin of error at 95% confidence is A.7.0 B.1.61 C.80.83 D.0.81

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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A sample of 75 information systems managers had an average hourly income of RM40.75 with a standard deviation of RM7.00. The value of the margin of error at 95% confidence is

A.7.0


B.1.61


C.80.83


D.0.81
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